tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hari Yellina" <yell...@iprimus.com.au>
Subject Re: Help getting beans working
Date Wed, 02 May 2001 11:24:25 GMT
please set the classpath right. Classes path should be set in the classpath
----- Original Message -----
From: Uronis, Jeremy <Jeremy.Uronis@usa.xerox.com>
To: <tomcat-user@jakarta.apache.org>
Sent: Wednesday, May 02, 2001 4:26 AM
Subject: RE: Help getting beans working


> Thanks for the reply Matt.
> I placed my bean in "c:\tomcat\webapps\examples\WEB-INF\classes"
> and the error i get is:
>
> Error: 500
> Location: /examples/jsp/test/bean1.jsp
> Internal Servlet Error:
>
> org.apache.jasper.JasperException: Unable to load class rayexamples.bean1
> at
>
org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:18
> 3)
> at
>
org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerato
> r.java:99)
> at
>
org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(J
> spParseEventListener.java:773)
> at
>
org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventLi
> stener.java:220)
> at
>
org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseE
> ventListener.java:175)
> at org.apache.jasper.compiler.Compiler.compile(Compiler.java:183)
> at
> org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:462)
> at
> org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146)
> at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:433)
> at
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
> rvlet.java:152)
> at
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
> va:164)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
> at org.apache.tomcat.core.Handler.service(Handler.java:286)
> at
> org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
> at
>
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
> 7)
> at
> org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
> at
>
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
> (Ajp12ConnectionHandler.java:166)
> at
> org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
> at
> org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
> at java.lang.Thread.run(Thread.java:484)
>
>
> Thanks - jeremy
>
>
>
> -----Original Message-----
> From: Matt Goss [mailto:mgoss@rtci.com]
> Sent: Tuesday, May 01, 2001 2:20 PM
> To: tomcat-user@jakarta.apache.org
> Subject: Re: Help getting beans working
>
>
> Try putting your beans in WEB-INF/classes folder instead. :)
> Matt
>
> "Uronis, Jeremy" wrote:
> >
> > hiya-
> >
> > i have a simple jsp which includes a bean. the file "bean1.jsp" is
> > located in "C:\tomcat\webapps\examples\jsp\test\bean1.jsp"
> > i did this following the faq on beans and jsp's.
> >
> >    "To use the default, put all your JSP source under /examples/jsp,
> either
> >    in the same directory or under a new subdirectory of /examples/jsp
(as
> >    done in the included examples)."
> >
> > here is my jsp
> >
> > <html>
> >  <body>
> >  <!- Find and instantiate the bean, and refer to it as myBean -->
> >  <jsp:useBean id="myBean" scope="page" class= "rayexamples.bean1"/>
> >  STEP-1 Use the bean's default property "World"<BR>
> >  Hello there, <%= myBean.getName() %><BR>
> >  Hi there, <jsp:getProperty name="myBean" property="name" /><BR>
> >  Howdy, <%= myBean.makeMeBig() %><BR><BR>
> >  STEP-2 Set the name property to "Sam", using jsp:setProperty
> > value="Sam"<BR>
> >  <jsp:setProperty name="myBean" property="name" value= "Sam"/>
> >  STEP-3 Use the bean's new property "Sam"<BR>
> >  Hello there, <%= myBean.getName() %><BR>
> >  Hi there, <jsp:getProperty name="myBean" property="name" /><BR>
> >  Howdy, <%=myBean.makeMeBig() %> <BR><BR>
> >  STEP-4 Set the name property to "Bernie", using setName()
> >  value= "Bernie"<BR>
> >  <% myBean.setName("Bernie");%>
> >  STEP-5 Use the bean's new property"Bernie"<BR>
> >          Hello there, <%=myBean.getName() %><BR>
> >  Hi there, <jsp:getProperty name="myBean" property="name" /><BR>
> >  Howdy, <%= myBean.makeMeBig()%> <BR><BR>
> >  STEP-6 Set the name property from the query string using
jsp:setProperty
> > param="name"<BR>
> >  <jsp:setProperty name="myBean" property="name" param="name" />
> >  STEP-7 Use the bean's new property from the URL <BR>
> >  Hello there, <%= myBean.getName() %><BR>
> >  Hi there, <jsp:getProperty name="myBean" property="name" /><BR>
> >  Howdy, <%= myBean.makeMeBig() %> <BR><BR>
> >  </body>
> > </html>
> >
> > now the faq says this on beans:
> >
> >    Put all your beans (class files) under
> >    /examples/WEB-INF/jsp/beans appropriately (as done for the included
> >    beans). The startserver script will automatically add these classes
to
> >    the CLASSPATH at runtime.
> >
> > here is my bean
> >
> > package rayexamples ;
> > import java.io.Serializable ;
> > public class bean1 implements Serializable{
> >
> >         String name ;
> >         /* The JavaBean's empty constructor */
> >         public bean1(){
> >                 name = "World" ;
> >         }
> >
> >         /* THE SETTER METHOD - property returned to the JSP
> setProperty()*/
> >         public void setName(String name){
> >                 this.name = name;
> >         }
> >
> >         /* THE GETTER METHOD - property is set by the JSP setProperty().
> >         If nothing is entered in the JSP, then name = World.
> >         Otherwise, name is set to the name passed here from the JSP. */
> >         public String getName(){
> >                 return name;
> >         }
> >
> >         /* THIS IS AN EXPOSED METHOD. It appends the word Big to the
> > beginning of the name string. This
> >         kind of method may be used for enforcing business rules,
> formatting
> >         the output, etc. */
> >         public String makeMeBig(){
> >                 name = "Big " + name ;
> >         return name ;
> >         }
> > }
> >
> > i put my bean1.class here in
> > "C:\tomcat\webapps\examples\WEB-INF\jsp\beans\test\bean1.jsp."
> > however, by looking at the other exmaples, their class files seem to be
> here
> > "C:\tomcat\webapps\examples\WEB-INF\classes\EXAMPLE_FOLDER". so, i tried
> > placing "bean1.clas"
> > in "C:\tomcat\webapps\examples\WEB-INF\classes\test\bean1.class" as
well,
> > with no luck.
> >
> > the error i get follows:
> >
> > Error: 500
> > Location: /examples/jsp/test/bean1.jsp
> > Internal Servlet Error:
> >
> > org.apache.jasper.JasperException: Unable to load class
rayexamples.bean1
> >         at
> >
>
org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:18
> > 3)
> >         at
> >
>
org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerato
> > r.java:99)
> >         at
> >
>
org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(J
> > spParseEventListener.java:773)
> >         at
> >
>
org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventLi
> > stener.java:220)
> >         at
> >
>
org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseE
> > ventListener.java:175)
> >         at
org.apache.jasper.compiler.Compiler.compile(Compiler.java:183)
> >         at
> > org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:462)
> >         at
> >
org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146)
> >         at
> org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:433)
> >         at
> >
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
> > rvlet.java:152)
> >         at
> >
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
> > va:164)
> >         at
> > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318)
> >         at
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391)
> >         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> >         at
> > org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
> >         at org.apache.tomcat.core.Handler.service(Handler.java:286)
> >         at
> > org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
> >         at
> >
>
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
> > 7)
> >         at
> > org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
> >         at
> >
>
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
> > (Ajp12ConnectionHandler.java:166)
> >         at
> >
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
> >         at
> >
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
> >         at java.lang.Thread.run(Thread.java:484)
> >
> > Root cause:
> > java.lang.ClassNotFoundException: Unable to load class rayexamples.bean1
> >         at
> > org.apache.jasper.servlet.JasperLoader.findClass(JasperLoader.java:223)
> >         at
> > org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:147)
> >         at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
> >         at
> >
>
org.apache.jasper.compiler.BeanRepository.getBeanType(BeanRepository.java:18
> > 1)
> >         at
> >
>
org.apache.jasper.compiler.GetPropertyGenerator.generate(GetPropertyGenerato
> > r.java:99)
> >         at
> >
>
org.apache.jasper.compiler.JspParseEventListener$GeneratorWrapper.generate(J
> > spParseEventListener.java:773)
> >         at
> >
>
org.apache.jasper.compiler.JspParseEventListener.generateAll(JspParseEventLi
> > stener.java:220)
> >         at
> >
>
org.apache.jasper.compiler.JspParseEventListener.endPageProcessing(JspParseE
> > ventListener.java:175)
> >         at
org.apache.jasper.compiler.Compiler.compile(Compiler.java:183)
> >         at
> > org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:462)
> >         at
> >
org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146)
> >         at
> org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:433)
> >         at
> >
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
> > rvlet.java:152)
> >         at
> >
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
> > va:164)
> >         at
> > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318)
> >         at
> org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391)
> >         at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> >         at
> > org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
> >         at org.apache.tomcat.core.Handler.service(Handler.java:286)
> >         at
> > org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
> >         at
> >
>
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
> > 7)
> >         at
> > org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
> >         at
> >
>
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
> > (Ajp12ConnectionHandler.java:166)
> >         at
> >
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
> >         at
> >
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
> >         at java.lang.Thread.run(Thread.java:484)
> >
> > any help would be great.
> > thanks - jeremy


Mime
View raw message